A graph is
IC-planar [1]} if it admits a 1-planar drawing
so that each vertex is incident to at most one crossed edge.
Structural properties have been studied in [2]}.
Brandenburg et al. [3]} have shown that IC-planar
graphs admit a 1-planar straight-line drawing with right angle
crossings. Hence, IC-planar graphs are simultaneously 1-planar and
RAC. Hence, a universality of the IC-planar graphs transfers to
all graph classes containing them.
